Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7935304 | Solar Energy | 2018 | 8 Pages |
Abstract
The three-dimensional heterostructured photoanode is considered to be an effective way to solve the problems of insufficient specific surface area and high electron recombination rate from one-dimensional nanomaterials. By combining the advantages of nanorods and nanosheets, we construct a novel TiO2 nanorod arrays/ZnO nanosheets (TNRAs/ZNSs) heterostructure as the photoanode in quantum-dot-sensitied solar cells (QDSSCs) by a controllable chemical bath deposition method at an appropriate temperature. The photoelectrochemical properties are measured by UV-Vis absorption spectra, current density-voltage (J-V), open-circuit voltage attenuation test (V-t) and electrochemical impedance spectroscopy (EIS). The results reveal that the TNRAs/ZNSs photoanode has larger specific surface area and slower electronic recombination rate, and its power conversion efficiency increases by 260% compared with TNRAs-based QDSSCs. This three-dimensional heterostructure exhibits distinct advantages and we believe that it can be used in other photoelectronic devices.
Keywords
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
Yang Zhang, Xiangli Zhong, Dongguo Zhang, Weijie Duan, Xiaolei Li, Shuaizhi Zheng, Jinbin Wang,